Choose a version:
19% The original file has 312226 bytes (304.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 60856 bytes (59.4k, 19%).

After GZIP compression these minified files vary in size:
Boot
  27402 bytes (26.8k)
CDN, direct link
Baidu
  24805 bytes (24.2k)
CDN, direct link
cdnjs
  24733 bytes (24.2k)
CDN, direct link
gzip -6 (default)
  24656 bytes (24.1k)
local copy
cdnhttps
  24634 bytes (24.1k)
CDN, direct link
gzip -9
  24605 bytes (24.0k)
local copy
libdeflate -12
  24108 bytes (23.5k)
local copy
7zip -mx=9 -tgzip
  23800 bytes (23.2k)
local copy
kzip -s0 -rn -b3
  23706 bytes (23.2k)
local copy
pigz -11 -n
  23702 bytes (23.1k)
local copy
Zopfli
  23671 bytes (23.1k)
local copy
Zopfli (defluff)
  23670 bytes (23.1k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.js

You will automatically get the smallest AngularJS 0.9.11 file, ETag caching is available and
if your browser doesn't support GZIP decompression then the uncompressed version will be sent.

Currently best Zopfli settings

Save 963 bytes by using my AngularJS 0.9.11 Zopfli version instead of the best available CDN (4.07% smaller than cdnhttps, 23671 vs. 24634 bytes):
You can use my super-compressed files for whatever purpose you like as long as you respect the library's original license agreement.
There are no restrictions from my side - but please avoid hot-linking if you run a high-traffic website.

These command-line settings yielded the best compression ratio so far (Linux version of zopfli-krzymod):
zopfli --i100000 --mb8 --mls32 --bsr7 --lazy --ohh

(found February 5, 2016)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 32  --mls32
block splitting recursion 7  --bsr7
lazy matching in LZ77 yes  --lazy
optimized Huffman headers yes  --ohh
initial random W for iterations 1  --rw1
initial random Z for iterations 2  --rz2

Even Smaller Files Thanks To Defluff

Zopfli's output can be further optimized by the defluff tool.
In this particular case, defluff saves 1 more byte (23670 bytes).

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://code.angularjs.org/0.9.11/angular-0.9.11.min.js --location | md5sum
a01e6236400b1bfce050d3558d2a81cc  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.zopfli.js.gz | md5sum
a01e6236400b1bfce050d3558d2a81cc  -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.11/angular-0.9.11.min.js --location | sha1sum
d159c77b7c1ee4522e98f2cac5501cc966866ad1  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.zopfli.js.gz | sha1sum
d159c77b7c1ee4522e98f2cac5501cc966866ad1  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 27402 bytes a01e6236400b1bfce050d3558d2a81cc March 18, 2015 @ 10:02
cdnjs 24733 bytes a01e6236400b1bfce050d3558d2a81cc March 28, 2014 @ 14:15
cdnhttps 24634 bytes a01e6236400b1bfce050d3558d2a81cc December 24, 2015 @ 07:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 24805 bytes c11f2ab45fcb544b09fabbe4dff61c35 only whitespaces differ June 5, 2014 @ 10:05

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.6.5, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.11, 1.5.10, 1.5.9, 1.5.8, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3, 1.5.2, 1.5.1, 1.5.0,
1.4.14, 1.4.13, 1.4.12, 1.4.11, 1.4.10, 1.4.9, 1.4.8, 1.4.7, 1.4.6, 1.4.5, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0,
1.3.20, 1.3.19, 1.3.18, 1.3.17, 1.3.16, 1.3.15, 1.3.14, 1.3.13, 1.3.12, 1.3.11, 1.3.10, 1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0,
1.2.32, 1.2.31, 1.2.30, 1.2.29, 1.2.28, 1.2.27, 1.2.26, 1.2.25, 1.2.24, 1.2.23, 1.2.22, 1.2.21, 1.2.20, 1.2.19, 1.2.18, 1.2.17, 1.2.16, 1.2.15, 1.2.14, 1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0,
1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.19, 0.9.18, 0.9.17, 0.9.16, 0.9.15, 0.9.14, 0.9.13, 0.9.12, 0.9.11, 0.9.10, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:
Size Improvement Parameters Found
23671 bytes -1 byte zopfli --i100000 --mls32 --bsr7 --lazy --ohh February 5, 2016 @ 12:34
23672 bytes -2 bytes zopfli --i10000 --mls32 --bsr7 --lazy --ohh November 26, 2015 @ 11:05
23674 bytes -4 bytes zopfli --i1000 --mls32 --bsr7 --lazy --ohh September 20, 2015 @ 20:05
23678 bytes -4 bytes zopfli --i1000 --mls2048 --bsr6 --lazy --ohh September 7, 2015 @ 22:24
23682 bytes -3 bytes zopfli --i1000 --mls1024 --bsr9 --lazy --ohh September 7, 2015 @ 22:24
23685 bytes zopfli --i100 --mls4096 --bsr16 --lazy --ohh September 7, 2015 @ 16:09

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on June 16, 2016 @ 14:38.

Heatmaps

This Zopfli heatmap visualizes how compression changes when modifying the --bsr and --mls parameter.
Cell's contents is the best filesize achieved (in bytes, hover with mouse over cells to see number of iterations).

Good parameters are green, bad are red. The best and worst are bold as well.
The brightness of the blue background color indicates how many iterations were processed:
10,000 or 100,000.
bsr \ mls
2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768
bsr \ mls
2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768
23736 23737 23737 23740 23698 23698 23685 23688 23692 23682 23697 23706 23708 23698 23696
23683 23685 23687 23695 23677 23681 23696 23692 23694 23703 23677 23684 23687 23687 23683
23677 23678 23700 23700 23676 23683 23679 23682 23686 23690 23677 23684 23702 23688 23680
23681 23680 23682 23684 23671 23685 23684 23684 23676 23680 23687 23677 23683 23689 23680
23679 23701 23699 23695 23695 23682 23678 23680 23677 23685 23684 23687 23680 23687 23682
23681 23681 23677 23678 23679 23679 23678 23689 23679 23680 23677 23677 23680 23687 23683
23682 23680 23677 23678 23679 23679 23679 23677 23681 23679 23680 23677 23677 23688 23679
23678 23679 23676 23678 23678 23679 23678 23679 23680 23681 23677 23680 23679 23691 23681
23680 23678 23678 23679 23678 23678 23678 23677 23681 23680 23677 23684 23681 23689 23681
23680 23680 23677 23678 23678 23678 23677 23676 23681 23681 23677 23680 23678 23687 23679
23681 23680 23676 23678 23677 23679 23679 23679 23680 23679 23679 23677 23688 23700 23680
23679 23679 23676 23678 23678 23679 23686 23684 23687 23683 23677 23677 23679 23688 23680
23686 23690 23686 23677 23677 23679 23683 23677 23680 23679 23678 23677 23683 23687 23679
23678 23679 23676 23679 23684 23679 23678 23679 23680 23680 23675 23677 23679 23678 23680
23680 23681 23677 23679 23677 23679 23680 23689 23682 23681 23677 23677 23679 23690 23681
23679 23682 23678 23681 23679 23679 23680 23678 23680 23680 23680 23678 23679 23690 23686
23679 23681 23678 23679 23676 23679 23680 23676 23681 23678 23677 23678 23677 23687 23678
23680 23681 23678 23680 23677 23679 23680 23678 23681 23681 23678 23677 23679 23700 23677
23681 23680 23678 23683 23677 23679 23680 23682 23681 23681 23678 23677 23686 23690 23681
23679 23679 23678 23678 23677 23678 23679 23678 23680 23680 23679 23677 23680 23680 23683
23680 23680 23677 23678 23678 23678 23678 23677 23681 23680 23681 23679 23680 23692 23680
23679 23681 23677 23682 23678 23679 23678 23679 23680 23681 23677 23677 23679 23680 23681
23678 23678 23677 23677 23680 23678 23678 23679 23681 23680 23678 23677 23680 23691 23681

Due to the Monte Carlo design of my search algorithm, not all parameters have reached the same number of iterations yet:
Iterations Min. Bytes Reduction Coverage
100 23684 bytes 100%
1,000 23674 bytes -10 bytes 100%
10,000 23672 bytes -2 bytes 100%
100,000 23671 bytes -1 byte 0.29%
1,000,000
10,000,000

KZIP has far less options available for tuning/optimization. I only played around with the number of blocks (parameter -n):
Blocks Min. Bytes Compared To Best Zopfli Compared To Best KZIP
23760 bytes +89 bytes (+0.38%) +54 bytes
24173 bytes +502 bytes (+2.12%) +467 bytes
23763 bytes +92 bytes (+0.39%) +57 bytes
23706 bytes +35 bytes (+0.15%)
23721 bytes +50 bytes (+0.21%) +15 bytes
23724 bytes +53 bytes (+0.22%) +18 bytes
23746 bytes +75 bytes (+0.32%) +40 bytes
23774 bytes +103 bytes (+0.44%) +68 bytes
23808 bytes +137 bytes (+0.58%) +102 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 20723 bytes -2948 bytes (-12.45%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21315 bytes -2356 bytes (-9.95%)
Brotli (Wikipedia) brotli brotli -q 11 21986 bytes -1685 bytes (-7.12%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 22336 bytes -1335 bytes (-5.64%)
LZMA2 (Wikipedia) xz xz -9 23264 bytes -407 bytes (-1.72%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 23797 bytes +126 bytes (+0.53%)
ZSTD (Wikipedia) zstd zstd -19 23953 bytes +282 bytes (+1.19%)

Detailled Analysis

I wrote a DEFLATE decoder in Javascript. Click the button below to start a client-side analysis of the smallest gzipped files (may take a second):


Notes: pigz is a fast open source multi-threaded implementation of gzip written by one of the original authors of gzip.
However, when using compression level 11, pigz actually switches to the slower Zopfli algorithm and isn't multi-threaded anymore.
KrzyMOD's extensions to Zopfli offer the highest level of configuration and is therefore used for my brute-force search.
Ken Silverman wrote the closed-source KZIP compression program and Jonathon Fowler ported it to Linux.
Defluff was created by Joachim Henke; DeflOpt is a tool by Ben Jos Walbeehm.

website made by Stephan Brumme in 2015 and still improving in 2017.
all timestamps are displayed in central european time. see my changelog.
no flash, not even images or external css files - and everything squeezed into a single html file.
which was handsomely compressed before releasing it into the wild internet - obviously.

please visit my homepage and my blog, too.
email: minime (at) stephan-brumme.com